[RodKnock]

While each car appeals to different buyers, in my opinion, if you're buying and installing a Tom Lucas FE engine, which isn't cheap, then I would opt for the SPF. If you're spending the big bucks on an FE engine, then I think this might be the "best fit" of the three.

Since the engine will be near accurate, then the SPF body, in my opinion again, is the closest of the three you listed to the original Cobra. However, the BDR and FFR are both excellent cars depending on other characteristics such as budget, painted roller versus unpainted builder, customer service, ride quality, etc.